z490 Extreme 4 not accepting M.2 in first slot

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   Dear Divinehammer,

Thanks for posting!

Regarding your question, the M.2_1 slot is reserved for the future processor.
When using the Comet Lake CPU, please install the M.2 to the second and third M.2 slots.

With thanks,
ASRock TSD

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ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8907	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Topic: z490 Extreme 4 not accepting M.2 in first slot Posted: 17 Nov 2020 at 6:00pm
	Dear Divinehammer, Thanks for posting! Regarding your question, the M.2_1 slot is reserved for the future processor. When using the Comet Lake CPU, please install the M.2 to the second and third M.2 slots. With thanks, ASRock TSD

Divinehammer Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Nov 2017 Status: Offline Points: 6	Post Options Post Reply Quote Divinehammer Report Post Thanks(0) Quote Reply Posted: 16 Nov 2020 at 11:50pm
	So over the weekend I was installing this Mobo. I also got a Samsung 970 evo plus M.2. According to the manual it appears that I should be able to install this in the M2_1 slot and boot. However putting it in that slot it did not appear to windows as a valid drive to install OS to. I put it in the M2_2 slot and it worked fine. However I dont like this because uusing M2_2 and M2_3 takes away SATA plugs. Should this have worked in the M2_1 slot? Can I now simply move the M2 drive to M2_1 with no other issues? Will it make a difference I see that this slot seems to be faster as it is Gen 4 not Gen 3. Thanks.